Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 242 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c
new file mode 100644
index 000000000..92e363dbb
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mem.c
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#define nvkm_mem(p) container_of((p), struct nvkm_mem, memory)
+#include "mem.h"
+
+#include <core/memory.h>
+
+#include <nvif/if000a.h>
+#include <nvif/unpack.h>
+
+struct nvkm_mem {
+	struct nvkm_memory memory;
+	enum nvkm_memory_target target;
+	struct nvkm_mmu *mmu;
+	u64 pages;
+	struct page **mem;
+	union {
+		struct scatterlist *sgl;
+		dma_addr_t *dma;
+	};
+};
+
+static enum nvkm_memory_target
+nvkm_mem_target(struct nvkm_memory *memory)
+{
+	return nvkm_mem(memory)->target;
+}
+
+static u8
+nvkm_mem_page(struct nvkm_memory *memory)
+{
+	return PAGE_SHIFT;
+}
+
+static u64
+nvkm_mem_addr(struct nvkm_memory *memory)
+{
+	struct nvkm_mem *mem = nvkm_mem(memory);
+	if (mem->pages == 1 && mem->mem)
+		return mem->dma[0];
+	return ~0ULL;
+}
+
+static u64
+nvkm_mem_size(struct nvkm_memory *memory)
+{
+	return nvkm_mem(memory)->pages << PAGE_SHIFT;
+}
+
+static int
+nvkm_mem_map_dma(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
+		 struct nvkm_vma *vma, void *argv, u32 argc)
+{
+	struct nvkm_mem *mem = nvkm_mem(memory);
+	struct nvkm_vmm_map map = {
+		.memory = &mem->memory,
+		.offset = offset,
+		.dma = mem->dma,
+	};
+	return nvkm_vmm_map(vmm, vma, argv, argc, &map);
+}
+
+static void *
+nvkm_mem_dtor(struct nvkm_memory *memory)
+{
+	struct nvkm_mem *mem = nvkm_mem(memory);
+	if (mem->mem) {
+		while (mem->pages--) {
+			dma_unmap_page(mem->mmu->subdev.device->dev,
+				       mem->dma[mem->pages], PAGE_SIZE,
+				       DMA_BIDIRECTIONAL);
+			__free_page(mem->mem[mem->pages]);
+		}
+		kvfree(mem->dma);
+		kvfree(mem->mem);
+	}
+	return mem;
+}
+
+static const struct nvkm_memory_func
+nvkm_mem_dma = {
+	.dtor = nvkm_mem_dtor,
+	.target = nvkm_mem_target,
+	.page = nvkm_mem_page,
+	.addr = nvkm_mem_addr,
+	.size = nvkm_mem_size,
+	.map = nvkm_mem_map_dma,
+};
+
+static int
+nvkm_mem_map_sgl(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
+		 struct nvkm_vma *vma, void *argv, u32 argc)
+{
+	struct nvkm_mem *mem = nvkm_mem(memory);
+	struct nvkm_vmm_map map = {
+		.memory = &mem->memory,
+		.offset = offset,
+		.sgl = mem->sgl,
+	};
+	return nvkm_vmm_map(vmm, vma, argv, argc, &map);
+}
+
+static const struct nvkm_memory_func
+nvkm_mem_sgl = {
+	.dtor = nvkm_mem_dtor,
+	.target = nvkm_mem_target,
+	.page = nvkm_mem_page,
+	.addr = nvkm_mem_addr,
+	.size = nvkm_mem_size,
+	.map = nvkm_mem_map_sgl,
+};
+
+int
+nvkm_mem_map_host(struct nvkm_memory *memory, void **pmap)
+{
+	struct nvkm_mem *mem = nvkm_mem(memory);
+	if (mem->mem) {
+		*pmap = vmap(mem->mem, mem->pages, VM_MAP, PAGE_KERNEL);
+		return *pmap ? 0 : -EFAULT;
+	}
+	return -EINVAL;
+}
+
+static int
+nvkm_mem_new_host(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
+		  void *argv, u32 argc, struct nvkm_memory **pmemory)
+{
+	struct device *dev = mmu->subdev.device->dev;
+	union {
+		struct nvif_mem_ram_vn vn;
+		struct nvif_mem_ram_v0 v0;
+	} *args = argv;
+	int ret = -ENOSYS;
+	enum nvkm_memory_target target;
+	struct nvkm_mem *mem;
+	gfp_t gfp = GFP_USER | __GFP_ZERO;
+
+	if ( (mmu->type[type].type & NVKM_MEM_COHERENT) &&
+	    !(mmu->type[type].type & NVKM_MEM_UNCACHED))
+		target = NVKM_MEM_TARGET_HOST;
+	else
+		target = NVKM_MEM_TARGET_NCOH;
+
+	if (page != PAGE_SHIFT)
+		return -EINVAL;
+
+	if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
+		return -ENOMEM;
+	mem->target = target;
+	mem->mmu = mmu;
+	*pmemory = &mem->memory;
+
+	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+		if (args->v0.dma) {
+			nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory);
+			mem->dma = args->v0.dma;
+		} else {
+			nvkm_memory_ctor(&nvkm_mem_sgl, &mem->memory);
+			mem->sgl = args->v0.sgl;
+		}
+
+		if (!IS_ALIGNED(size, PAGE_SIZE))
+			return -EINVAL;
+		mem->pages = size >> PAGE_SHIFT;
+		return 0;
+	} else
+	if ( (ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
+		kfree(mem);
+		return ret;
+	}
+
+	nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory);
+	size = ALIGN(size, PAGE_SIZE) >> PAGE_SHIFT;
+
+	if (!(mem->mem = kvmalloc_array(size, sizeof(*mem->mem), GFP_KERNEL)))
+		return -ENOMEM;
+	if (!(mem->dma = kvmalloc_array(size, sizeof(*mem->dma), GFP_KERNEL)))
+		return -ENOMEM;
+
+	if (mmu->dma_bits > 32)
+		gfp |= GFP_HIGHUSER;
+	else
+		gfp |= GFP_DMA32;
+
+	for (mem->pages = 0; size; size--, mem->pages++) {
+		struct page *p = alloc_page(gfp);
+		if (!p)
+			return -ENOMEM;
+
+		mem->dma[mem->pages] = dma_map_page(mmu->subdev.device->dev,
+						    p, 0, PAGE_SIZE,
+						    DMA_BIDIRECTIONAL);
+		if (dma_mapping_error(dev, mem->dma[mem->pages])) {
+			__free_page(p);
+			return -ENOMEM;
+		}
+
+		mem->mem[mem->pages] = p;
+	}
+
+	return 0;
+}
+
+int
+nvkm_mem_new_type(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
+		  void *argv, u32 argc, struct nvkm_memory **pmemory)
+{
+	struct nvkm_memory *memory = NULL;
+	int ret;
+
+	if (mmu->type[type].type & NVKM_MEM_VRAM) {
+		ret = mmu->func->mem.vram(mmu, type, page, size,
+					  argv, argc, &memory);
+	} else {
+		ret = nvkm_mem_new_host(mmu, type, page, size,
+					argv, argc, &memory);
+	}
+
+	if (ret)
+		nvkm_memory_unref(&memory);
+	*pmemory = memory;
+	return ret;
+}